Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?
Arrange the numbers 1 to 6 in each set of circles below. The sum of each side of the triangle should equal the number in its centre.
Use the number weights to find different ways of balancing the equaliser.
If you have ten counters numbered $1$ to $10$, how many can you put into pairs that add to $10$?
Can you use them all?
Say how you got your answer.